Huashengming Gold Crusher (primarily a roller crusher) operates on the principle of dual-roller compression crushing combined with shear tensile action. By adjusting the roller gap, it precisely controls the output particle size, making it particularly suitable for high-moisture, sticky materials like clay-bearing gold ore. Below is a detailed analysis of its core working principle:
Gold Crusher
1. Core Crushing Principle
Dual-Roller Compression Crushing
Material enters between two counter-rotating rollers via the feed inlet. Hydraulic or spring systems compress the rollers, exerting intense squeezing force on the material. High-hardness toothed structures on the roller surfaces (e.g., toothed roller design) further enhance shearing and tensile forces, efficiently fracturing gold ore at its weak points.
Synergistic Shear and Tensile Action
Unlike traditional impact crushers, Huashengming equipment employs a low-speed, high-torque transmission system. This causes the material to undergo impact shear forces and impact tensile forces within the roller tooth gaps. Shear forces concentrate at the joints or fractures within the ore, significantly boosting crushing efficiency.
2. Particle Size Control Mechanism
Dynamic Roll Gap Adjustment
Output particle size is regulated by adjusting the gap between the two rollers:
Increasing gap → Larger output size (e.g., 5-40mm);
Decreasing gap (via spring or hydraulic compression) → Smaller output size (e.g., 1-3mm fine sand).
Hydraulic models support ±0.1mm precision adjustment, meeting stringent leaching process particle size requirements.
Simultaneous Grading and Screening
Certain models (e.g., high-efficiency grading crushers) integrate screening functionality. During crushing, material is graded through tooth gaps and rotating screens, directly separating qualified particles and reducing over-crushing.
3. Special Structural Design
Anti-clogging Toothed Rollers & Screenless Bottom Design
Toothed roller surface: Spiral-arranged wear-resistant tooth discs enhance bite penetration of wet, sticky materials, preventing adhesion and blockage in muddy ores (moisture content ≤15%).
Dual-stage crusher models: Eliminate the screen bottom, utilizing dual rotors for relay crushing of wet materials, achieving near-zero clogging rates.
Wear-Resistant Components & Materials
Roll shell features a triple-layer composite structure:
Outer layer: High-chromium alloy (HRC 60+) for impact resistance;
Middle layer: High-manganese steel matrix for crack prevention;
Inner layer: Dovetail groove locking to prevent detachment.
Lifespan exceeds standard equipment by over 2x, handling capacity surpasses 30,000 tons.
4. Protection & Intelligent Control
Overload Protection Mechanism
Hydraulic/spring dual-mode yielding: Automatically widens the roll gap upon encountering rebar or non-crushable objects to prevent equipment damage.
Hydraulic coupling and safety coupling: Dual overload protection ensures transmission system stability.
Intelligent Control System
AI Dynamic Adjustment: Real-time monitoring of material hardness and moisture automatically adjusts roll gap and motor power, reducing energy consumption by 25% with a qualified output rate ≥98%.
Remote Monitoring: Supports mobile device start/stop control and fault alerts (e.g., 72-hour advance warning for bearing wear).
5. Workflow Example (Using Wet Gold Ore)
Feeding: Muddy gold ore (≤80mm) enters crushing chamber;
Primary Crushing: Dual-roll compression + toothed-roll shearing reduces to 20-40mm;
Classification Screening: Rotary screen separates ≤8mm particles; oversize returns for recrushing;
Discharge: Uniform 2-8mm particles exit directly to leaching process.
Summary
Huashengming Gold Crusher achieves efficient ore crushing through dual-roller compression combined with shear-tension composite forces. Hydraulic/spring-loaded gap adjustment precisely controls particle size (1-40mm), while its anti-clogging toothed rollers and triple-layer wear-resistant roll liners overcome the challenges of wet, sticky, muddy gold ore. The intelligent control system further optimizes energy consumption and discharge stability, providing an efficient solution for wet ore pre-crushing and tailings resource utilization in gold mining.
Translated with DeepL.com (free version)
